Nongovernmental organizations operate a.)with governmental oversight. b.)using contract workers. c.)independent of government. d.)in single countries.

The correct answer is C.

NonGovermental Organizations or NGOs are non-profit organizations which operate independently from goverments or other international organizations, although they often receive funding from both. NGOs are active in humanitarian, social, educational, health care, public policy, human rights, environmental, and other areas in order to contribute to a change, depending on their ultimate goal.

Im not sure but i think its 3. Independent of government